immunity Archive

New Thinking About Herd Immunity


Warning: preg_replace(): Unknown modifier '/' in /home/content/p3nexnas06_data03/66/2191966/html/wp-content/plugins/jetpack/class.photon.php on line 332
An outbreak of measles at Disney this year caused a media event that had many discussing the effectiveness of vaccines and vaccine policy in the US. Throughout history infectious diseases have ravaged human populations. With …